Question

如图,塔AB和楼CD的水平距离为80m.从点C处及楼底D处测得塔顶的仰角分别为45°和60°试求塔高和楼高.

Answer 1

AB=80×tan60°=80√3 (m)

CD=AB-80=80×(√3-1) (m)

答：塔高为80×(√3-1) (m),楼高为80√3 (m).